mailbox; letter box; letterbox; mail slot
mail; postal matter; postal item
postbox; mailbox; pillar box
postal delivery; mail delivery; postman; mailman
postman; mailman; letter carrier; mail carrier
mailman; postman; mail carrier; post carrier
mail clerk; post-office clerk; post-office worker; postal employee; postal worker
postman; postwoman; postal delivery worker
international mail; overseas mail
mail system; postal service; postal system; post
postal service; post service
special delivery mail; express delivery post
registered mail; registered post
mail service; postal service
mail from abroad; foreign mail; overseas mail
mail held at the post office
electronic mail service; e-mail service; electronic mail system; letter facsimile service operated by Japan Post
postpaid mail; postage paid
postal privatisation (privatisation of Japan Post)
physical delivery office number
physical delivery office name
postage deferred payment mail
postal voting; postal ballot; voting by mail
lost mail; undeliverable mail
Express Mail Service (for international mail); EMS
postal delivery zone; postal zone